HID Crescendo® SDK provides integrators with API and a Command Line Interface (CLI) Tool to manage and use HID Crescendo® devices, including the Crescendo Cards and the USB- and NFC-enabled HID Crescendo Key Series.
Supported devices:
- Smart cards: Crescendo 2300, Crescendo 3000, Crescendo 4000
- USB Keys: Crescendo Key v1, Crescendo Key v3
Documentation: https://docs.hidglobal.com/hid-crescendo-sdk-v1.1/homepage.htm